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Science Mid-Term Studying Quiz

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Science Mid-Term Studying Quiz

Question 1 of 19

1

What devices are used to measure mass, volume, density, and weight?

Select one or more of the following:

  • Triple-Beam balance & scale

  • mass divided by weight

  • graduated cylinder

  • beaker

  • volume over mass

  • mass over volume

Explanation

Question 2 of 19

1

For the pendulum experiment what were the Independent and dependent variables?

Select one of the following:

  • Mass, period

  • Weight, size

  • Time, force

Explanation

Question 3 of 19

1

Scientific theory is what scientists predict to happen in the future.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 19

1

How many significant figures are in 0.57?

Select one of the following:

  • 2

  • 3

  • 4

  • 1

Explanation

Question 5 of 19

1

Using sig figs, how would you solve 26.9 divided by 3?

Select one of the following:

  • .9

  • 9

  • 900

  • .009

Explanation

Question 6 of 19

1

Percent error is: predicted-true value
------------------------------
true value

Select one of the following:

  • True
  • False

Explanation

Question 7 of 19

1

Fill the blank spaces to complete the text.

Protons add amu to the atom. Neutrons add amu to the atom. Electrons add mass to the overall atom.

Explanation

Question 8 of 19

1

Properties of metalloids include-

Select one or more of the following:

  • brittle

  • somewhat reactive

  • hard

  • soft

  • unbreakable

  • luster

Explanation

Question 9 of 19

1

What is the last part of the brain to develop?

Select one of the following:

  • frontal cortex

  • pre-frontel cortex

  • dark matter

  • white matter

Explanation

Question 10 of 19

1

Three methods used to avoid animal-testing?

Select one or more of the following:

  • in vitro testing

  • computer modeling

  • volunteer

  • insect testing

Explanation

Question 11 of 19

1

solutions contain a solvent dissolved in a solute

Select one of the following:

  • True
  • False

Explanation

Question 12 of 19

1

molecular compounds in water conduct electric current

Select one of the following:

  • True
  • False

Explanation

Question 13 of 19

1

a characteristic property of a solution is that it can scatter light

Select one of the following:

  • True
  • False

Explanation

Question 14 of 19

1

brass is a solid dissolved in a solid

Select one of the following:

  • True
  • False

Explanation

Question 15 of 19

1

shows the ratio of atoms in a compound

Select one of the following:

  • chemical formula

  • element

  • mixture

Explanation

Question 16 of 19

1

Dalton thought the atom was a condense sphere

Select one of the following:

  • True
  • False

Explanation

Question 17 of 19

1

...thought the atom was like a watermelon (scattered electrons)

Select one of the following:

  • thomson

  • bohr

  • rutherford

  • dalton

Explanation

Question 18 of 19

1

Rutherford said the atom was like....

Select one of the following:

  • empty space with a positive core

  • a cloud of electrons

  • electrons surrounding a nucleus of protons and neutrons

Explanation

Question 19 of 19

1

Bohr said the atom had a nucleus filled with protons and neutrons with electrons orbiting around the entire nucleus

Select one of the following:

  • True
  • False

Explanation

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